Advanced Satellite nV System Network Topologies
The Satellite nV system supports the dual-homed network architecture as shown in the Figure. In the dual
home architecture, two hosts are connected to a satellite through the Satellite Discovery And Control (SDAC)
Protocol. The SDAC Protocol provides the behavioral, semantic, and syntactic definition of the relationship
between a satellite device and its host.
Both these dual-homed hosts act in the active/standby mode for the satellite. The standby host takes control
of the satellite only when the active host is down. The two hosts can leverage the ICCP infrastructure to
provide redundant Layer 2 and Layer 3 services for Satellite Ethernet interfaces. The network traffic is switched
through the active host. In case of connection loss to the active host due to various types of failure such as
cut cable and host or client connection interface failure, the standby host becomes the active host and the
active host becomes the new standby host. The hosts communicate with each other using ORBIT/ICCP
protocols. The Satellite Discovery and Control (SDAC) session is established from both the active and standby
hosts, and it is only the traffic flows that are in the active/standby mode.
Figure 3: Dual Home Network Architecture
The advanced satellite nV system network topologies can be realized based on one of these architecture:
•
Hub and Spoke network topology
•
Dual Home network topology
•
Simple Ring topology
•
Layer 2 Fabric network topology
This table summarizes the network encapsulation techniques used by different Satellite nV System topologies.
Cisco ASR 9000 Series Aggregation Services Router nV System Configuration Guide, Release 5.3.x
11
Configuring the Satellite Network Virtualization (nV) System
Advanced Satellite nV System Network Topologies
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